112 lines
3.0 KiB
C++
112 lines
3.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "InteractiveToolBuilder.h"
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#include "DynamicMeshBrushTool.h"
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#include "BaseTools/MeshSurfacePointMeshEditingTool.h"
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#include "ShapeSprayTool.generated.h"
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#define UE_API MESHMODELINGTOOLSEDITORONLYEXP_API
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/**
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* UMeshSurfacePointMeshEditingToolBuilder override for UShapeSprayTool
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*/
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UCLASS(MinimalAPI, Transient)
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class UShapeSprayToolBuilder : public UMeshSurfacePointMeshEditingToolBuilder
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{
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GENERATED_BODY()
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public:
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UE_API virtual UMeshSurfacePointTool* CreateNewTool(const FToolBuilderState& SceneState) const override;
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};
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/**
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* Settings UObject for UShapeSprayTool.
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*/
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UCLASS(MinimalAPI, Transient)
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class UShapeSprayToolProperties : public UInteractiveToolPropertySet
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{
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GENERATED_BODY()
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public:
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UE_API UShapeSprayToolProperties();
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UPROPERTY(EditAnywhere, Category = Options)
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FLinearColor Color;
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UPROPERTY(EditAnywhere, Category = Options)
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bool bRandomColor;
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UPROPERTY(EditAnywhere, Category = Options, meta = (DisplayName = "Speed", UIMin = "0.01", UIMax = "1.0"))
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float DropSpeed;
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UPROPERTY(EditAnywhere, Category = Options, meta = (DisplayName = "Shape Size", UIMin = "1.0", UIMax = "30.0"))
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float ObjectSize;
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UPROPERTY(EditAnywhere, Category = Options, meta = (DisplayName = "Repeat Per Stamp"))
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int NumSplats;
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UPROPERTY(EditAnywhere, Category = Options)
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TObjectPtr<UMaterialInterface> Material = nullptr;
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};
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/**
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* UShapeSprayTool is a brush-based tool that generates random points on the
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* target surface within the brush radius, and then creates small meshes
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* at those points. The accumulated meshes are appended and can
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* be emitted as a new StaticMeshComponent on Accept.
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*/
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UCLASS(MinimalAPI, Transient)
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class UShapeSprayTool : public UDynamicMeshBrushTool
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{
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GENERATED_BODY()
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public:
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UE_API UShapeSprayTool();
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UE_API virtual void SetWorld(UWorld* World);
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// UInteractiveTool API
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UE_API virtual void Setup() override;
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UE_API virtual void Shutdown(EToolShutdownType ShutdownType) override;
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virtual bool HasCancel() const override { return true; }
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virtual bool HasAccept() const override { return true; }
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UE_API virtual bool CanAccept() const override;
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UE_API virtual void OnPropertyModified(UObject* PropertySet, FProperty* Property) override;
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// UMeshSurfacePointTool API
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UE_API virtual void OnBeginDrag(const FRay& Ray) override;
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UE_API virtual void OnUpdateDrag(const FRay& Ray) override;
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UE_API virtual void OnEndDrag(const FRay& Ray) override;
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protected:
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UPROPERTY()
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TObjectPtr<UShapeSprayToolProperties> Settings;
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// small meshes are accumulated here
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UPROPERTY()
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TObjectPtr<UDynamicMeshComponent> AccumMeshComponent;
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protected:
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UWorld* TargetWorld;
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UE::Geometry::FDynamicMesh3 ShapeMesh;
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UE_API void UpdateShapeMesh();
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UE_API void SplatShape(const UE::Geometry::FFrame3d& LocalFrame, double Scale, UE::Geometry::FDynamicMesh3* TargetMesh);
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TArray<int> VertexMap;
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FRandomStream Random;
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UE_API virtual void EmitResult();
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};
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#undef UE_API
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